Finding the Fourth Proportional to 2,458,730.78, 3,687,298 and 816,967.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458,730.78 : 3,687,298 = 816,967.10 : x
2. Step 2: Convert to fraction form
   2,458,730.78/3,687,298 = 816,967.10/x
3. Step 3: Cross multiply
   2,458,730.78x = 3,687,298 × 816,967.10
4. Step 4: Simplify right side
   2,458,730.78x = 3,012,401,153,895.80
5. Step 5: Solve for x
   x = 3,012,401,153,895.80/2,458,730.78
6. Step 6: Final answer
   x = 1,225,185.44